ISD Software Process Overview

1
ISD Software Process Overview

• January 20, 2006
• Presented by Ella Page
• Software Process Improvement (SPI) Project

2
Agenda

• Purpose and Objectives
• ISD Process Overview
• Finding Assets in the Process Asset Library (PAL)
• http//software.gsfc.nasa.gov/process.cfm

3
Purpose and Objectives

• Purpose Provide a walkthrough of top-priority
  ISD Mission Software process assets
• Objective Help you understand
• Whats in a process description
• How the ISD process library is organized
• What tasks are required for selected processes
• Where to find support assets for each process
  addressed
• Where to find assets in the Process Asset Library
  (PAL)

http//software.gsfc.nasa.gov/process.cfm
4
Definitions for This Presentation

• Top Priority Processes Refers to those
  processes that focus on the monitoring and
  controlling aspects of software project
  management
• Mission Software Refers to software directly
  associated with the operational support of flight
  projects, including network communications,
  planning and scheduling, flight system
  (spacecraft and instrument), flight dynamics,
  ground mission and science command and control,
  and science data capture software
• Project Refers to Software projects for the
  development or maintenance of mission support
  software
• Data Management Refers to the collection,
  control, and handling of all process, management,
  and project data
• Project Manager Refers to those who perform
  software project management functions, for
  example Development Team Lead, Product
  Development Lead, or Software Manager

5
Process Description Content

• Purpose
• Scope
• Context
• Roles and Responsibilities
• Inputs
• Entry Scenarios
• Entry Criteria
• Exit Criteria

• Outputs
• Major Task (list)
• Major Task Description
• Measures
• Tools
• Training
• References
• QMS Records

6
ISD Process Categories
7
Process Categories, 1 of 2
http//software.gsfc.nasa.gov/AboutPal.cfm
8
Process Categories, 2 of 2
http//software.gsfc.nasa.gov/AboutPal.cfm
9
Project Management Process Flow
10
Project Planning Process
Helps you formulate your approach for managing
and conducting your software development or
maintenance effort.
Replanning
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.2
11
Project Planning Tasks
Tasks performed sequentially, iteratively, or in
parallel
Be sure to plan for data management and
stakeholder involvement. Review associated plans
for consistency.
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.2
12
Project Planning Tasks

• Project Planning Tasks
• Identify deliverables and dependencies
• Identify development/acquisition strategy
• Estimate software project effort, schedule, and
  cost
• Select and tailor the life-cycle model
• Identify personnel and other resources
• Project Planning Tasks (contd.)
• Identify risks and mitigation strategies
• Produce a Work Breakdown Structure (WBS) and
  build/release plan
• Produce a Software Management Plan/Product Plan
• Modify the Software Management Plan/Product Plan

http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.2
13
Project Planning Related Assets

• Policies
• ISD Software Policies (1.0.0.1)
• Processes and Sub-processes
• ISD Project Planning Process (1.2)
• Estimating the Software Process (1.2.1)
• ISD Software Risk Identification (1.2.3)
• Standards, Procedures, Guidelines, Templates, and
  Checklists
• Wide Band Delphi Procedure (1.2.1.2)
• ISD Guidelines for the WBS (1.2.4.1)
• Estimating the Software Project (1.2.1)
• Guidance on Data Management and Process
  Configuration Management (3.1.1.2)
• ISD Software Management Plan/Product Plan
  templates (1.2.6.1 and 1.2.6.3)
• FSW In-house Life-Cycle (1.2.2.1.1)
• FSW Product Plan Template (1.2.6.1.1)
• Tools
• Point Counting Spreadsheets (1.4.2.1)

http//software.gsfc.nasa.gov/isdpaindx.cfm
14
Project Monitoring and Control Process
Shows you how to assess your project's progress
so you can take corrective actions when
performance deviates from your plan.
Replanning
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.4
15
Project Monitoring and Control Tasks
Tasks performed continuously
Tasks performed as needed
Monitor data management, stakeholder
involvement, and risk elements of the software
project as you go.
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.4
16
Project Monitoring and Control Tasks

• Project Monitoring and Control Tasks
• Performed continuously
• Monitor software project activities and resources
• Monitor work products and software project data
• Monitor software acquisition
• Monitor commitments
• Performed as needed
• Manage corrective actions
• Generate management reports and reviews
• Conduct milestone reviews
• Document lessons learned

http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.4
17
Project Monitoring and Control Related Assets

• Policies
• ISD Software Policies (1.0.0.1)
• Processes and Sub-processes
• ISD Project Monitoring and Control (1.4)
• Risk Monitoring and Control (1.4.4)
• Standards, Procedures, Guidelines, Templates, and
  Checklists
• Action Item Tracking Guideline (1.4.3.5)
• Contents of the Software Requirements Review
  (2.2.1.6)
• Software Contents of the Mission-Level
  Preliminary Design Review (2.3.1.5)
• Contents of the Software Preliminary Design
  Review (2.3.1.6)
• Software Contents of the Mission-Level Critical
  Design Review (2.3.2.4)
• Contents of the Software Critical Design Review
  (2.3.2.5)
• ISD Branch Status Review Template (1.4.3.4)
• FSW Status Reporting Templates (1.4.3.2.1,
  1.4.3.2.2, 1.4.3.2.3)
• FSW PDR Standard (2.3.1.6.1)
• FSW Preliminary Design Review Standard
  (2.3.1.6.1)
• FSW Critical Design Review Standard (2.3.2.4.1)
• Tools
• Point Counting Spreadsheets (1.4.2.1)

http//software.gsfc.nasa.gov/isdpaindx.cfm
18
Project Monitoring and Control Other Related
Assets

• FSB Measurement, Analysis and Reporting Standard
• SDO Metrics Collection and Storage Procedures
• JWST Metrics Collection and Storage Procedures

19
Risk Management Process
Helps you minimize the impact of risks on cost,
schedule, and quality of your software project
products.
Project Monitoring Control
Replanning
http//software.gsfc.nasa.gov/isdpaindx.cfm
Assets 1.2.3 and 1.4.4
20
Risk Identification Tasks
Tasks performed sequentially and iteratively
As you begin risk identification, establish a
risk strategy and identify risk sources and
categories.
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.2.3
21
Risk Identification Tasks

• Risk Identification Tasks
• Identify risks
• Estimate impact, likelihood and risk exposure
• Classify risks
• Develop mitigation/contingency strategy for
  high-exposure risks
• Create Risk Management Plan
• Record risks in Risk Management Database
• Get Risk Management Plan approval
• Report risks or enter into Project-level risk tool

http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.2.3
22
Risk Monitoring Control Tasks
Tasks performed sequentially and iteratively
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.4.4
23
Risk Monitoring and Control Tasks

• Risk Monitoring and Control Tasks
• Analyze risks
• Analyze, update, document risk mitigation/continge
  ncy strategies
• Implement risk mitigation/contingency strategies
• Report updated risks and enter into Risk
  Management Database

http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 1.4.4
24
Risk Management Related Assets

• Policies
• ISD Software Policies (1.0.0.1)
• FSW Risk Management Policy (1.2.3.1.0)
• Processes and Sub-processes
• ISD Software Risk Identification (1.2.3)
• ISD Software Risk Monitoring and Control (1.4.4)
• Tools
• FSB Risk Management Tool (1.2.3.3.1)

http//software.gsfc.nasa.gov/isdpaindx.cfm
25
Product Development Process Flow
26
Requirements Management Process
Keeps software project requirements change under
control and lets you avoid unintended scope
growth.
Requirements Engineering
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 2.2.2
27
Requirements Management Tasks
Tasks performed sequentially and iteratively
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 2.2.2
28
Requirements Management Tasks

• Analyze change request
• Prepare impact statement
• Obtain change request approval
• Generate changed requirements, specification, and
  change requests for other work products
• Verify changed requirements and specifications
• Validate changed requirements and specifications
• Obtain approval to proceed

http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 2.2.2
29
Requirements Management Related Assets

• Policies
• ISD Software Policies (1.0.0.1)
• Processes and Sub-processes
• ISD Requirements Management Process (2.2.2)
• Standards, Procedures, Guidelines, Templates, and
  Checklists
• Contents of the Software Requirements Review
  (2.2.1.6)
• FSW Requirements Review Standard (2.2.1.6.1)
• FSW Requirements Document Template (2.2.1.2.1)
• Tools
• Rational RequisitePro FSW standard requirements
  management aid (http//www-306.ibm.com/software/aw
  dtools/reqpro/)
• DOORs - Requirements tracing aid
  (http//www.telelogic.com/products/doorsers/doors/
  )
• SLATE - Requirements tracing aid
  (http//www.sdrc.com/

http//software.gsfc.nasa.gov/isdpaindx.cfm
30
Organizational Support Process Flow
31
Configuration Management Process
Helps you maintain the integrity of work products.
Project Management Processes
Planning Data
Configuration Management Process
Project Planning
Project Formulation
CM Plan
Status reports audit results
Project Monitoring Control
Project Startup
Controlled work products approved change requests
Work products change requests
Project Closeout
Product Development Processes
Requirements Engineering
Design
Implementation
Systems Engineering
Sustaining Engineering Maintenance
Product Release
Testing
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 3.1
32
Configuration Management Tasks
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 3.1
33
Configuration Management Tasks

• Tasks performed during planning and startup
• Define levels of control, responsibilities, and
  methods for change authorization
• Identify configuration items
• Define CM procedures
• Prepare the CM Plan
• Establish the software project CCB
• Setup CM tools and libraries
• Tasks performed iteratively
• Establish baselines
• Perform configuration control
• Perform configuration status accounting
• Perform configuration audits

http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 3.1
34
Configuration Management Related Assets

• Policies
• ISD Software Policies (1.0.0.1)
• Processes and Sub-processes
• ISD Software Configuration Management (3.1)
• FSB Standards CCB Process (3.5.3.1.1)
• Standards, Procedures, Guidelines, Templates, and
  Checklists
• Functional Configuration Audit Checklist
  (3.1.1.3)
• Physical Configuration Audit Checklist (3.1.1.4)
• FSW Configuration Management Plan Template
  (3.1.1.1.1)

http//software.gsfc.nasa.gov/isdpaindx.cfm
35
Software Assurance Process

• Helps you ensure that software life cycle
  processes and products conform to requirements,
  standards, and procedures.

• Software Assurance begins during mission
  formulation
• The Office of Systems Safety and Mission
  Assurance (OSSMA), Code 300, nominally supports
  class B and class C software
• Software Quality (SQ) support is responsible for
  objective evaluation of adherence to all Process
  and Product Quality Assurance (PPQA) requirements
• Software Assurance is also supported by the
  Independent Verification and Validation Facility
  (IVV)
• Software projects work in concert with these
  organizations

http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 3.2.1.1
36
Software Quality Tasks Code 300
Software Quality support sequential and
iterative
IVV support (if funded) sequential and
iterative
http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 3.2.1.1
37
Software Quality Tasks Code 300

• Software Quality support
• Develop a Software Quality Plan to document
  quality program goals, processes, and
  responsibilities
• Provide independent, objective evaluations of
  software processes and products throughout
  software life cycle
• Communicate software assurance status with
  Software Management, project personnel, and IVV
  (when assigned)
• IVV support
• Conduct an IVV start-up assessment
• Develop the IVV Plan
• Conduct reviews and evaluations of high risk
  software
• Communicate software assurance status

http//software.gsfc.nasa.gov/isdpaindx.cfm
Asset 3.2.1.1
38
If Not Supported By Code 300
Tasks performed sequentially and iteratively
39
If Not Supported By Code 300

• Identify an objective person to perform SQ
  activities for the software project
• Develop an SQ Plan to document quality program
  goals, processes, and responsibilities
• Provide independent, objective evaluations of
  software processes and products throughout
  software life cycle
• Communicate software quality status with Software
  Management and software project personnel

40
Software Assurance Related Assets

• Policies
• ISD Software Policies (1.0.0.1)
• Processes and Sub-processes
• Procedure for Developing and Implementing
  Software Quality Programs http//sw-assurance.gsf
  c.nasa.gov/ disciplines/quality/index.php
• Standards, Procedures, Guidelines, Templates, and
  Checklists
• Software Quality Assurance Plan template
  http//sw-assurance.gsfc.nasa.gov/disciplines/qual
  ity/index.php
• ISD Software Assurance Planning Guidelines
  (3.2.1.1)
• Code 300 Assets http//sw-assurance.gsfc.nasa.gov
  / disciplines/quality/index.php

http//software.gsfc.nasa.gov/isdpaindx.cfm
41
Measurement and Analysis Process
Helps you collect and analyze metric data to
support both software project management and
process improvement.
Project Management Processes
Measurement Plan
Measurement Analysis Process
Project Planning
Project Formulation
Metric Data
Project Monitoring Control
Project Startup
Metrics Analysis
Metric Data
Project Closeout
Product Development Processes
Requirements Engineering
Design
Implementation
SW Systems Engineering
Sustaining Engineering Maintenance
Product Release
Testing
http//software.gsfc.nasa.gov/metrics.htm
42
Measurement and Analysis Tasks
Tasks performed sequentially and iteratively
http//software.gsfc.nasa.gov/metrics.htm
43
Measurement and Analysis Tasks

• Plan software project measures
• Collect and store measures
• Analyze measures
• Report measures

http//software.gsfc.nasa.gov/metrics.htm
44
Measurement and Analysis Related Assets

• Policies
• ISD Software Policies (1.0.0.1)
• Processes and Sub-processes
• ISD Measurement and Analysis (3.4)
• ISD Measurement Plan (3.4.11)
• Standards, Procedures, Guidelines, Templates, and
  Checklists
• ISD Branch Status Review Template (1.4.3.4)
• ISD Software Management Plan/Product Plan for
  Class B C Software, measurement section
  (1.2.6.1)
• FSW Status Reporting Templates (1.4.3.2.1,
  1.4.3.2.2, 1.4.3.2.3)
• Tools
• Point Counting Spreadsheet (1.4.2.1)
• ISD Measurement Collection Spreadsheet
• Web Site
• (http//software.gsfc.nasa.gov/metrics.htm)

http//software.gsfc.nasa.gov/isdpaindx.cfm
45
January 2006 Using the website
http//software.gsfc.nasa.gov/
Get measurement info
Find tools
Locate training and experts
See lessons learned
Use approved process assets
See Engineering process group (EPG) Contacts
Use search function to find assets
Click asset name to get asset PDF
Click ? to get feedback form
Click icons for desired files
46
January 2006 Accessing Presentation Slides From
the Website
For SW Engineering Discussions Click
Training and highlight S/W Eng.
Discussions
Access SW Engineering Discussion
schedule (http//software.gsfc.nasa.gov/swengdisc
.cfm)
Access slides from past SW Engineering
Discussions (http//software.gsfc.nasa.gov/swengd
isc.cfm)
For Other On-Line Slides Click Training and
highlight Training Program
Access slides from multiple NASA centers
47
Feedback and Help

• Get help when you need it
• Sally Godfrey Software Process Improvement
  Manager
• Sara.H.Godfrey.1_at_gsfc.nasa.gov
• Sanjeev Sharma Software Process Improvement
• Sanjeev.K.Sharma.1_at_gsfc.nasa.gov

48

• Questions